Ski boot



FIG. 1 is a side elevational view of a ski boot showing our new design;

FIG. 2 is a side elevational view thereof from the side opposite thatshown in FIG. 1;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

The ornamental design for a ski boot, as shown.